BULB • DICCIONARIO INGLES.COM • Definition of Bulb

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/bəlb/ Listen

noun

Bulb n.

(Bot.) A spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid.

(Anat.) A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta.

Bulb of the eye, the eyeball.

Bulb of a hair, the "root," or part whence the hair originates.

Bulb of the spinal cord, the medulla oblongata, often called simply bulb.

Bulb of a tooth, the vascular and nervous papilla contained in the cavity of the tooth.

An expansion or protuberance on a stem or tube, as the bulb of a thermometer, which may be of any form, as spherical, cylindrical, curved, etc.

A light bulb.

verb

Bulb v. i. To take the shape of a bulb; to swell.

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Etymology of 'Bulb'

Collaborative International Dictionary of English 0.48

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"Bulb" Quotes from Famous Books

... biting the bulb off, and the quicksilver flying down my throat, and running about inside me for ever ...

— The Creators - A Comedy • May Sinclair

... solid matter is removed, also a vital phenomenon? Is not the conception of a pipe or a tube that forces semi-fluid matter along its hollow interior, by the contraction of its walls, quite beyond the reach of mechanics? The force is as mechanical as the squeezing of the bulb of a syringe by the hand, but in the case of the intestines, what does the squeezing? The ...

— The Breath of Life • John Burroughs

... wall, the squalidness of the cubbyhole ceased to depress her. On the slab before her lay scattered the details of make-up, and crowded into one corner stood her open wardrobe trunk. A placard near a light-bulb read, "Please remember that YOU are here for a few days, but we are here all the time. Do not deface our home," and under that notice, probably tempted by it into irony, a former occupant had scrawled in huge ...

— Destiny • Charles Neville Buck

... dining-room and there met Presley and his father, who had been aroused as well by Annixter's clamour. Osterman was there, too, his bald head gleaming like a bulb of ivory in the light of the ...

— The Octopus • Frank Norris

... alone, my soul." And if the servant smashes three electric-light bulbs in three minutes, say to her: "How very inconsiderate and careless of you!" But say to yourself: "Don't hear it, my soul. Don't take fright at the pop of a light-bulb." ...

— Fantasia of the Unconscious • D. H. Lawrence

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